Polydiorganosiloxane/thiuram disulfide block copolymers and radi

Details Polydiorganosiloxane/thiuram disulfide block copolymers and radi Polydiorganosiloxane/thiuram disulfide block copolymers and radi

1992-10-21

1993-08-17

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528 25, 528 26, 526194, C08G 7706, C08F28312, C07F 702

Patent

active

052370208

ABSTRACT:
Polydiorganosiloxane/thiuram disulfide block copolymers having the formula: ##STR1## well adapted as "polyiniferters" in the radical polymerization of vinyl monomers, e.g., the (meth)acrylates or styrene, are prepared by reacting a corresponding .alpha.,.omega.-(amino)diorganopolysiloxane with CS.sub.2 in the presence of a tertiary amine and an oxidizing agent, e.g., iodine.

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Journal of Applied Polymer Science, "Surface Photografting of Hydrophilic Vinyl Monomers onto Diethyldithiocarbamated Polydimethylsiloxane", Mar. 29, 1984, vol. 29, No. 3, pp. 877-889.
Polymer, "Functionalization of Vinyl Polymers Through Polymeric Iniferters: Synthesis of Poly(methylmethacrylate-b-phosphonamide) and Poly(styrene-b-phosphonamide)", vol. 29, Oct. 1988, pp. 1909-1917.

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